Now Playing: Backlash grows against Trump's statements on protests in sports

Now Playing: Health Secretary Tom Price is under investigation for dozens of trips on private planes

Now Playing: Ominous war of words continue between Trump and North Korea's leader

Now Playing: McCain says he will vote 'no' on the latest attempt to kill Obamacare

Now Playing: {{itm.title}}

{"id":13513552,"title":"Remembering 9/11: Memorials for First Responders ","duration":"3:00","description":"Emergency workers remember the sacrifices made on 9/11.","url":"/WNT/video/remembering-911-memorials-responders-13513552","section":"WNT","mediaType":"default"}